Triangular plate with peripheral opening



FIG. 1 is a top pan view of a triangular plate with peripheral opening showing my new design;

FIG. 2 is a cross sectional view thereof taken along line 2—2 in FIG. 1;

FIG. 3 is a bottom plan view thereof; and,

FIG. 4 is a cross-sectional view thereof taken along line 4—4 in FIG. 3. 

The ornamental design for a triangular plate with peripheral opening, as shown and described. 